saucelabs pre run capability

[Michael Maynard]

This is more of a question than anything, but has anyone ever tried to use the Saucelabs pre run capability? It's supposed to allow a specified script to be run on the Sauce VM before a test is run. The way I am attempting to use it is by using Saucelabs Temporary Storage where I have put my bat file.

I've tried setting this up on my own but so far it doesn't seem to work. I just want to make sure its possible to set the pre run capability with Nightwatch.

My Nightwatch.json:

"production_WIN7_Chrome": {

      "test_workers": {"enabled" : true, "workers" : 10},

      "launch_url": "",

      "prerun" : "sauce-storage:sauceprerun.bat",

      "desiredCapabilities": {

        "browserName": "chrome",

        "platform" : "WIN7",

        "javascriptEnabled": true,

        "acceptSslCerts": true

      }

    },

Link to pre run documentation: 

https://support.saucelabs.com/customer/portal/articles/2005374-how-to-pre-load-files-to-sauce-labs-vms